In general the brightness of the TFT display, according to the specifications of different TFT panel parameters, TN panel and IPS panel transmittance is different, the market TFT display brightness is basically in 200 cd/m²-450 cd/m² (1nit= 1cd/m²).
Now the update of science and technology, electronic products use display screen equipment than before the scene is different more and more, therefore, the previous brightness has been unable to meet the current demand for products. To increase the high brightness of the TFT is more and more demanding, subject to the limitations of the TFT panel process and cost considerations, to increase the brightness of the way in the backlight component is the easiest to realize, the easiest to achieve the desired brightness requirements.
IPS panel By changing or adding materials, IPS panel can reach 900cd/m²-1100cd/m².
HONGCAI TFT LCD display manufacturershas a lot of successful and rich successful experience in TFT lcd display, improve the brightness of the project, to ensure the low cost, to ensure the display of ultra-high brightness to meet the customer’s product brightness requirements.
1.Backlight
1.1 Choose high brightness LEDs, use higher brightness LEDs, about 3% increase in brightness.
1.2 Increase the number of LEDs, in the light guide space, add more and smaller LED, leaving more space to place more LEDs, but also need more current and voltage, increase the number of different to greatly improve the brightness of 13%.
1.3 Dual-chip LEDs, using a LED with 2 LED IC’s LEDs, which requires the use of more current in the current, about 10% increase in brightness.
2.Optimize the backlight process:
2.1 Improve the design of light guide plate, diffusion film, light-enhancing film optical materials to improve the efficiency of light utilization, about to improve 1-5% brightness.
3.Improvement of TFT liquid crystal panel transmittance (subject to material limitations, not under consideration)
3.1 Improvement of liquid crystal materials: choose liquid crystal materials with higher light transmittance.
3.2 Optimize liquid crystal arrangement: Reduce light loss through more reasonable molecular arrangement and process design.
4.Brightening polarizer
4.1 Underneath the TFT panel, the original conventional POL is replaced with 3M coated polarizer POL, which can theoretically increase the brightness by about 20%-30%.
5.backlight material brightening technology
5.1 Add brightening film RP: Reduce the light loss and enhance the output brightness by adding brightening film, which can theoretically improve the brightness by about 5%-10%.
5.2 Add brightening film DBEF: Enhance the output brightness by adding DBEF brightening film, which can theoretically increase the brightness by about 5%-10%.
5.3 The reflective film of the backlight is changed to ESR material produced by 3M Company, which can improve about 3%-5%.
The above program provides improvement measures at different levels from hardware to materials, which can be selected according to specific application scenarios and budgets. Improvements can be synthesized to achieve desired results based on actual needs and cost factors. It is worth noting that the actual effect of each method may vary depending on the specific product and technical conditions, so a thorough evaluation should be conducted before implementation. In addition, considering the service life of the display, it is not recommended to set the brightness too high.
